Table XV

Extracted Elemental Impurities Reported for Multi-material Systems

ElementTest ArticleExtraction DetailsExtracted ConcentrationRef.
SolventConditions
AlCapsule filter; PVDF membrane, PP shellWaterDynamic extraction with recirculation, ambient temperature, 24 h6 ng/mL18
Capsule filter; PVDF membrane, PP shellEthanol<0.1 ng/mL
Plastic prefilled syringePlacebo50 °C, 1 week; 0.8% Polysorbate 80, 0.9% NaCl, pH 424 mg/kg24
Single-use manufacturing systemSimulant5/10/90 [dimethylformamide (DMF)/ethanol/water], ambient, 7 days, agitation<2 mg36
Syringe used to compound total parenteral nutrition solutionsWaterStatic extract, filled syringe, 24 h at ambient temperature1–10 μg/L50
Type 1 vials + halobutyl rubber closure5% human serum albumin60 °C for 10 h, followed by 1 month at 20 °C100 μg/L52
CaCapsule filter; PVDF membrane, PP shellWaterDynamic extraction with recirculation, ambient temperature, 24 h22 ng/mL18
Capsule filter; PVDF membrane, PP shellEthanol
Single-use manufacturing systemSimulant5/10/90 (DMF/ethanol/water), ambient, 7 days, agitation<2 mg36
CuCapsule filter; PVDF membrane, PP shellWaterDynamic extraction with recirculation, ambient temperature, 24 h2 ng/mL18
Capsule filter; PVDF membrane, PP shellEthanol<0.1 ng/mL
MgCapsule filter; PVDF membrane, PP shellWater3 ng/mL
Capsule filter; PVDF membrane, PP shellEthanol<0.1 ng/mL
NaCapsule filter; PVDF membrane, PP shellWater280 ng/mL
Capsule filter; PVDF membrane, PP shellEthanol160 ng/mL
Single-use manufacturing systemSimulant5/10/90 (DMF/ethanol/water), ambient, 7 days, agitation<2 mg36
ZnCapsule filter; PVDF membrane, PP shellWaterDynamic extraction with recirculation, ambient temperature, 24 h<0.1 ng/mL18
Capsule filter; PVDF membrane, PP shellEthanol2.2 ng/mL